Finding the Fourth Proportional to 400,922.94, 553,273.63 and 239,777.99
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Solution
The fourth proportional to 400,922.94, 553,273.63 and 239,777.99 is: 330,893.60
Step by Step Solution
- Step 1: Write the proportion equation
400,922.94 : 553,273.63 = 239,777.99 : x - Step 2: Convert to fraction form
400,922.94/553,273.63 = 239,777.99/x - Step 3: Cross multiply
400,922.94x = 553,273.63 × 239,777.99 - Step 4: Simplify right side
400,922.94x = 132,662,836,938.78 - Step 5: Solve for x
x = 132,662,836,938.78/400,922.94 - Step 6: Final answer
x = 330,893.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.